APA Citation

Arnold, R. (1906). The Tertiary and Quaternary Pectens of California. Washington: Govt. Print. Off..

Chicago Style Citation

Arnold, Ralph. The Tertiary and Quaternary Pectens of California. Washington: Govt. Print. Off., 1906.

MLA Citation

Arnold, Ralph. The Tertiary and Quaternary Pectens of California. Washington: Govt. Print. Off., 1906.

Warning: These citations may not always be 100% accurate.